The Boston Globe's Top 50 scariest movies of all time...

A fascinating list to be sure...
original list

1. The Thing (1982)
2. Ju-On (2000)
3. [*Rec] (2007)
4. The Ring (2002)
5. Alien (1979)
6. Invasion of the Body Snatchers (1978)
7. Dawn of the Dead (1978)
8. Evil Dead II (1987)
9. Halloween (1978)
10. Audition (1999)
11. The Shining (1980)
12. Cloverfield (2008)
13. Quartemass and the Pit (1968)
14. The Exorcist (1973)
15. Jaws (1975)
16. Jacob's Ladder (1990)
17. Jesus Camp (2006)
18. 28 Days Later (2002)
19. The Changeling (1980)
20. Hellraiser (1987)
21. The Texas Chain Saw Massacre (1974)
22. The Silence of the Lambs (1991)
23. A Tale of Two Sisters (2003)
24. Saw (2004)
25. War of the Worlds (1953)
26. Se7en (1995)
27. Videodrome (1983)
28. The Mist (2007)
29. The Mothman Prophecies (2002)
30. Altered States (1980)
31. In the Mouth of Madness (1994)
32. Session 9 (2001)
33. The Beyond (1981) (aka Gates of Hell)
34. Salem's Lot (1979)
35. The Fly (1986)
36. A Nightmare on Elm Street (1984)
37. Open Water (2003)
38. Pet Sematary (1989)
39. The Amityville Horror (1979)
40. Eraserhead (1977)
41. Dawn of the Dead (2004)
42. Event Horizon (1997)
43. The Brood (1979)
44. Rosemary's Baby (1968)
45. The Blob (1988)
46. The Wicker Man (1973)
47. Willy Wonka and the Chocolate Factory (1971)
48. Book of Shadows: Blair Witch 2 (2000)
49. The Innocents (1961)
50. Arachnophobia (1990)